You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Michigan Remove constraint Place: Michigan Place Sleeping Bear Dunes; Otter Spring Creek. Remove constraint Place: Sleeping Bear Dunes; Otter Spring Creek. Topic Plantae Remove constraint Topic: Plantae Topic Polypodiales Remove constraint Topic: Polypodiales Topic Polypodiopsida Remove constraint Topic: Polypodiopsida